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P0463 Diagnostic Trouble Code Discussion for July 2011

Fuel Level Sensor High Voltage

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Trouble Ticket Help Requests for DTC P0463
Help Request Posted
1998 Chevrolet P30 7.4L Fuel pump runs 3 sec VIN: 1GBLP37J3W
P0463: Fuel Level Sensor Low Voltage. Coach came in as a crank no start.vehicle started after holding gas pedal down as if it were flooded.checked fuel pressure (52psi), thats when i noticed that when i cycled the key off the pump ran for 3 seconds. Checked pin 85 @ fuel pump relay (which is feed ...
July 18, 2011